Signs
 

Collapsing Pulse

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Overview

  • Collapsing pulse can be thought of as a palpably widened pulse pressure; in the context of aortic regurgitation or PDA it is often possible to feel a markedly water hammer pulse on lifting the arm up.
    • How to Perform

    • Ask the patient if they have any pain in their shoulder, and then lift their arm up while palpating their radial pulse.
  • Feel for a strong pulse with sudden drop in intensity following its peak.
    • Causes of Collapsing Pulse

    • Aortic regurgitation
    • Patent ductus arteriosus
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